Functional characteristics of electroreceptors of the Turkestan catfish

Acute experiments to record spike activity from single fibers of the lateral line nerve of the Turkestan catfish revealed electroreceptor formations which, in their functional characteristics, were similar to the ampullated electroreceptors of other freshwater fish (the so-called small pit organs)....

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Bibliographic Details
Published in:Neurophysiology (New York) 1980-01, Vol.12 (5), p.326-332
Main Authors: Broun, G. R., Il'inskii, O. B., Mamadaliev, A., Muraveiko, V. M., Supichakov, Kh. Ya
Format: Article
Language:English
Subjects:
Freshwater
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Summary:Acute experiments to record spike activity from single fibers of the lateral line nerve of the Turkestan catfish revealed electroreceptor formations which, in their functional characteristics, were similar to the ampullated electroreceptors of other freshwater fish (the so-called small pit organs). The threshold intensity of the uniform electric field was 1 mu V/cm. A voltage drop on the skin of the fish was shown to be an effective stimulus for the electroreceptors. A spike response to a change in the magnetic field was found for the first time in electroreceptors of freshwater fish. The threshold level of magnetic induction for a velocity of rotation of the permanent magnet of 1 m/sec was 2.9 multiplied by 10 super(-4) T. Temperature and mechanical sensitivity of the electroreceptors was determined.
ISSN:0090-2977
1573-9007
DOI:10.1007/BF01066079